五年级下册 分数的意义和性质（笔算）

45 = ( )10 8	3036 = 56	1214 = 67
915 = 35	39 = 13	49 = ( )18 8
12 = ( )4 2	28 = 14	89 = ( )45 40
2032 = 58	2436 = 23	1020 = 12
25 = ( )30 12	1228 = 37	12 = ( )6 3
1821 = 67	35 = ( )45 27	36 = ( )30 15
24 = ( )20 10	1215 = 45	24 = ( )20 10
824 = 13	610 = 35	618 = 13
1416 = 78	12 = ( )4 2	12 = ( )10 5
39 = ( )45 15	17 = ( )28 4	14 = ( )36 9
13 = ( )6 2	23 = ( )15 10	12 = ( )12 6
3036 = 56	23 = ( )21 14	23 = ( )12 8
23 = ( )18 12	68 = ( )40 30	13 = ( )30 10
78 = ( )72 63	23 = ( )21 14	15 = ( )35 7
612 = 12	18 = ( )72 9	24 = ( )24 12
13 = ( )9 3	1227 = 49	3545 = 79
2535 = 57	38 = ( )72 27

45 = 810	3036 = 56	1214 = 67
915 = 35	39 = 13	49 = 818
12 = 24	28 = 14	89 = 4045
2032 = 58	2436 = 23	1020 = 12
25 = 1230	1228 = 37	12 = 36
1821 = 67	35 = 2745	36 = 1530
24 = 1020	1215 = 45	24 = 1020
824 = 13	610 = 35	618 = 13
1416 = 78	12 = 24	12 = 510
39 = 1545	17 = 428	14 = 936
13 = 26	23 = 1015	12 = 612
3036 = 56	23 = 1421	23 = 812
23 = 1218	68 = 3040	13 = 1030
78 = 6372	23 = 1421	15 = 735
612 = 12	18 = 972	24 = 1224
13 = 39	1227 = 49	3545 = 79
2535 = 57	38 = 2772